/********************************************************************************/
/*										*/
/*			     	TPM Disable Reading of the Endorsement Key	*/
/*			     Written by J. Kravitz, S. Berger			*/
/*		       IBM Thomas J. Watson Research Center			*/
/*	      $Id: disablepubek.c 4073 2010-04-30 14:44:14Z kgoldman $		*/
/*										*/
/* (c) Copyright IBM Corporation 2006, 2010.					*/
/*										*/
/* All rights reserved.								*/
/* 										*/
/* Redistribution and use in source and binary forms, with or without		*/
/* modification, are permitted provided that the following conditions are	*/
/* met:										*/
/* 										*/
/* Redistributions of source code must retain the above copyright notice,	*/
/* this list of conditions and the following disclaimer.			*/
/* 										*/
/* Redistributions in binary form must reproduce the above copyright		*/
/* notice, this list of conditions and the following disclaimer in the		*/
/* documentation and/or other materials provided with the distribution.		*/
/* 										*/
/* Neither the names of the IBM Corporation nor the names of its		*/
/* contributors may be used to endorse or promote products derived from		*/
/* this software without specific prior written permission.			*/
/* 										*/
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS		*/
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT		*/
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR	*/
/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT		*/
/* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,	*/
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT		*/
/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	*/
/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	*/
/* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT		*/
/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	*/
/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.		*/
/********************************************************************************/

#include <stdio.h>
#include <string.h>
#include "tpmfunc.h"

/* local prototypes */
void printUsage(void);

int main(int argc, char *argv[])
{
    int ret = 0;
    int			i;			/* argc iterator */
    unsigned char pass1hash[20];
    char *ownpass = NULL;
   
    TPM_setlog(0);      /* turn off verbose output */

    for (i=1 ; i<argc ; i++) {
	if (!strcmp(argv[i], "-pwdo")) {
	    i++;
	    if (i < argc) {
		ownpass = argv[i];
	    }
	    else {
		printf("Missing parameter to -pwdo\n");
		printUsage();
	    }
	}
	else if (!strcmp(argv[i], "-h")) {
	    printUsage();
	}
	else if (!strcmp(argv[i], "-v")) {
	    TPM_setlog(1);
	}
	else {
	    printf("\n%s is not a valid option\n", argv[i]);
	    printUsage();
	}
    }
    if (ownpass == NULL) {
	printf("Missing -pwdo argument\n");
	printUsage();
    }
    /*
    ** use the SHA1 hash of the password string as the Owner Authorization Data
    */
    TSS_sha1((unsigned char *)ownpass ,strlen(ownpass),pass1hash);
    ret = TPM_DisablePubekRead(pass1hash);
    if (ret != 0)
        {
            printf("Error %s from TPM_DisablePubekRead\n",TPM_GetErrMsg(ret));
            exit(ret);
        }
    exit(0);
}

void printUsage(void)
{
    printf("\n");
    printf("disablepubek - Runs TPM_DisablePubekRead\n");
    printf("Disables further reading of the public endorsement key\n");
    printf("\n");
    printf("Usage: disablepubek -pwdo <owner password>\n");
    printf("\n");
    exit(-1);
}
   
